wm8580a Wolfson Microelectronics plc, wm8580a Datasheet - Page 23

• Manufacturer Part Number: wm8580a
• Description: Multichannel Codec With S/pdif Transceiver
• Manufacturer: Wolfson Microelectronics plc

Production Data
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Table 13 Master Mode MCLK / LRCLK Frequency Selection
SAMPLING RATE
176.4kHz
(LRCLK)
44.1kHz
88.2kHz
192kHz
32kHz
48kHz
96kHz
Table 12 Master Mode Registers
The frequency of a master mode LRCLK is dependant on system clock and the RATE register
control bits. Table 13 shows the settings for common sample rates and system clock frequencies.
Table 14 Master Mode RATE Registers
In master mode, the BCLKSEL register controls the number of BCLKs per LRCLK. If the
MCLK:LRCLK ratio is 128fs or 192fs and BCLKSEL = 10, BCLKSEL is overwritten to be 128
BCLKs/LRCLK. Also, if BCLKSEL = 00, and LRCLK is 192fs or 1152fs, the generated BCLK has a
mark-space ratio of 1:2.
REGISTER
ADDRESS
REGISTER
RATE =000
ADDRESS
PAIF 1
PAIF 2
SAIF 1
11.2896
22.5792
5.6448
12.288
24.576
PAIF 1
PAIF 2
SAIF 1
R10
0Ah
R11
0Bh
4.096
6.144
09h
128fs
R9
R10
R11
09h
0Ah
0Bh
R9
BIT
RATE =001
5
5
5
16.9344
33.8688
18.432
36.864
6.144
8.467
9.216
192fs
2:0
2:0
2:0
BIT
SAIFMS
PAIFRX
PAIFTX
LABEL
MS
MS
PAIFRX_RATE
PAIFTX_RATE
SAIF_RATE
Unavailable
Unavailable
MCLK CLOCK FREQUENCY (MHZ)
RATE =010
11.2896
22.5792
12.288
24.576
LABEL
8.192
256fs
[2:0]
[2:0]
[2:0]
DEFAULT
0
0
0
Unavailable Unavailable Unavailable Unavailable
Unavailable Unavailable Unavailable Unavailable
RATE =011
16.9344
33.8688
12.288
18.432
36.864
PAIF Receiver Master/Slave Mode Select:
PAIF Transmitter Master/Slave Mode Select:
SAIF Master/Slave Mode Select:
384fs
DEFAULT
010
010
010
0 = Slave Mode
1 = Master Mode
0 = Slave Mode
1 = Master Mode
0 = Slave Mode
1 = Master Mode
Unavailable Unavailable Unavailable
Unavailable Unavailable Unavailable
RATE =100
22.5792
16.384
24.576
512fs
Master Mode MCLK/LRCLK
Ratio:
DESCRIPTION
000 = 128fs
001 = 192fs
010 = 256fs
011 = 384fs
100 = 512fs
101 = 768fs
110 = 1152fs
DESCRIPTION
PD, Rev 4.7, March 2009
RATE =101
33.8688
36.864
24.576
768fs
WM8580
Unavailable
Unavailable
RATE =110
36.864
1152fs
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